Fix telegram bot send_document (#118616)

homeassistant/components/telegram_bot/__init__.py

@@ -287,7 +287,9 @@ SERVICE_MAP = {
 def _read_file_as_bytesio(file_path: str) -> io.BytesIO:
     """Read a file and return it as a BytesIO object."""
     with open(file_path, "rb") as file:
-        return io.BytesIO(file.read())
+        data = io.BytesIO(file.read())
+        data.name = file_path
+        return data
 
 
 async def load_data(